3D printer



FIG. 1 is a perspective view of a 3D printer showing my new design;

FIG. 2 is an another perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken line showing of portions of the 3D printer depicts unclaimed environmental subject matter. 

CLAIM The ornamental design for a 3D printer, as shown and described. 